You will need the specific kof99plus.zip file, which usually needs to be placed within your MAME roms folder. It is often used alongside the original kof99.zip (parent ROM) to work properly.
The King of Fighters '99 Plus ROM is a must-play for fans of the series and fighting games in general. With its additional features, characters, and stages, this ROM offers a rich and engaging experience that builds upon the classic gameplay of the original. Whether you're a seasoned veteran or new to the series, the King of Fighters '99 Plus ROM is definitely worth checking out. Kof 99 Plus Rom
to clone him, leading to the introduction of the new protagonist, K' (K-Dash) Hidden Mainstays : Iconic rivals Kyo Kusanagi Iori Yagami You will need the specific kof99plus